Mug



FIG. 1 is a perspective view from above and to the front right of the mug embodying the ornamental design;

FIG. 2 is a perspective view from below and to the left rear of the mug;

FIG. 3 is a right side elevation view of the mug, with the left side elevation view being a mirror image;

FIG. 4 is a front elevation view of the mug;

FIG. 5 is a back elevation view of the mug;

FIG. 6 is a top view of the mug; and,

FIG. 7 is a bottom view of the mug. 

The ornamental design for a mug, as shown and described. 